Hans jordan



Patented Dec. 25, 1928,

UNITED STATES PATENT OFFICE.

HANS JORDAN, OF BERLIN-STEGLITZ, GERMA NY, ASSIGN TO THE EIRM: CHEMISCHEFAIBBJI AUF ACTIEN, VORM. E. SCHERING,.OF BERLIN, GERMANY.

METHOD OF PRODUCING CONDENSATION PRODUCTS FROM CRUDE CRESOL AND ACETONE.

No Drawing. Application filed October 25, 1927, Serial No. 228,701, andin Germany October 26, 1926.

condensation products from crude cresol and acetone. As explained in mycopendingapplicat-ion for patent of the United States,

filed June 20, 1927, Serial No. 200,289, condensation of por In-cresolwith ketones, and more especially with acetone inthe presence of acondensing agent of acid character at a temperature not exceeding 100 C.results in products representing a di-mer form of the alkylene cresolsfirst formed and which are valuable in the production of odorants ariddisinfectants. If a mixture of Inand p-cresol is used there results .amixtureof mand p-products,- which cannot easily be separated.

I have now found that the two condensa tion products present in thismixture can be separated from each other in a simple manner, if themixture is dissolved in ether.

From this solution are separated out beautiful crystals which consist ofthe pure mcresol acetone product containing crystal other and melt at737 5 C., the ether being split'ofl'. In the mother liquor the p-cresolacetone product remains over. The condensation productsobtainedtaccordin to this invention are believed to have the ollowingformulas The product obtained from m-cresol and acetone:

CH1. CH:

016% I Olin (hi:

My invention refers to the production of This product crystallizes with1 molecule crystal ether.

VThe product obtained from p-cresol and acetone:

CH OH:

cit $11.

Various changes may be made in the details disclosed in the foregoingspecifications without departing from the invention or sac- HANS JORDAN.

